tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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access-control-sandboxed-iframe.html (480B)

      1 <!DOCTYPE html>
      2 <html>
      3  <body>
      4  <script type="text/javascript">
      5 window.addEventListener("message", (evt) => {
      6  const url = evt.data;
      7  const xhr = new XMLHttpRequest;
      8 
      9  xhr.open("GET", url, false);
     10 
     11  try {
     12    xhr.send();
     13  } catch(e) {
     14    parent.postMessage("Exception thrown. Sandboxed iframe XHR access was denied in 'send'.", "*");
     15    return;
     16  }
     17 
     18  parent.postMessage(xhr.responseText, "*");
     19 }, false);
     20 
     21 parent.postMessage("ready", "*");
     22  </script>
     23  </body>
     24 </html>